Home / 887,770.50-1,225,127.61-485,362.50

Finding the Fourth Proportional to 887,770.50, 1,225,127.61 and 485,362.50

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Solution

The fourth proportional to 887,770.50, 1,225,127.61 and 485,362.50 is: 669,802.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,770.50 : 1,225,127.61 = 485,362.50 : x
  2. Step 2: Convert to fraction form
    887,770.50/1,225,127.61 = 485,362.50/x
  3. Step 3: Cross multiply
    887,770.50x = 1,225,127.61 × 485,362.50
  4. Step 4: Simplify right side
    887,770.50x = 594,630,999,608.63
  5. Step 5: Solve for x
    x = 594,630,999,608.63/887,770.50
  6. Step 6: Final answer
    x = 669,802.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.